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既有线加强与改建
释义
既有线加强与改建
Encyclopedia
工学
铁路选线设计
释
betterment and reconstruction of existing railway
既有线加强与改建
对运营铁路进行技术改造。通过提高既有铁路的输送能力、列车运行速度,降低运输成本,以适应经济社会发展所带来的铁路运量的快速增长以及旅客对运输质量的更高要求。
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astronomical image-processing system
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